Half reactions quiz

What is a half reaction?

• a reaction that have oxidizing and reducing agent

• a reaction that represents an oxidation or a reduction

oxidation is when...

• looses electrons

• gains electrons

Reduction is when...

• gain electrons

• looses electrons

oxidizing agent is the one that make an element oxidize electrons and gain electrons

• true

• false

Reducing agent is...(select 2 options)

• the one that reduces an element

• the one that reduces

• the one that looses electrons

• the one that gain electrons

Lead (II) is used for

• production of batteries and power tracks

• sunscreen lotions and cream

• remove stains

• desinfect surfaces

Lead(IV) is used for

• power vehicles

• make sunscreen

• pigment ceramics, glass and paints

• clean stains

TIO2 is used for

• power vehicles

• sunscreen lotions and creams

• desinfect surfaces

H2O2 is used for

• laundry detergent and household cleaners

• power vehicles

• help the plants to do photosynthesis

Na2S2O4 is used for

• pigment ceramics

• remove stains

• make sunscreen